package com.xohm.cm.gui.table;

import java.util.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;

/**
 * @version 1.0 02/25/99
 */
@SuppressWarnings("serial")
public class SortButtonRenderer extends JButton implements TableCellRenderer
{
	public static final int NONE = 0;
	public static final int DOWN = 1;
	public static final int UP = 2;
	int pushedColumn;
	Hashtable<Object, Object> state;
	JButton downButton, upButton;

	public SortButtonRenderer()
	{
		pushedColumn = -1;
		state = new Hashtable<Object, Object>();

		setMargin(new Insets(0, 0, 0, 0));
		setHorizontalTextPosition(LEFT);
		setIcon(new BlankIcon());

		downButton = new JButton();
		downButton.setMargin(new Insets(0, 0, 0, 0));
		downButton.setHorizontalTextPosition(LEFT);
		downButton.setIcon(new BevelArrowIcon(BevelArrowIcon.DOWN, false, false));
		downButton.setPressedIcon(new BevelArrowIcon(BevelArrowIcon.DOWN, false, true));

		upButton = new JButton();
		upButton.setMargin(new Insets(0, 0, 0, 0));
		upButton.setHorizontalTextPosition(LEFT);
		upButton.setIcon(new BevelArrowIcon(BevelArrowIcon.UP, false, false));
		upButton.setPressedIcon(new BevelArrowIcon(BevelArrowIcon.UP, false, true));

	}

	public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
			int row, int column)
	{
		JButton button = this;
		Object obj = state.get(new Integer(column));
		if (obj != null)
		{
			if (((Integer) obj).intValue() == DOWN)
			{
				button = downButton;
			}
			else
			{
				button = upButton;
			}
		}
		button.setText((value == null) ? "" : value.toString());
		boolean isPressed = (column == pushedColumn);
		button.getModel().setPressed(isPressed);
		button.getModel().setArmed(isPressed);
		return button;
	}

	public void setPressedColumn(int col)
	{
		pushedColumn = col;
	}

	public void setSelectedColumn(int col)
	{
		if (col < 0)
			return;
		Integer value = null;
		Object obj = state.get(new Integer(col));
		if (obj == null)
		{
			value = new Integer(DOWN);
		}
		else
		{
			if (((Integer) obj).intValue() == DOWN)
			{
				value = new Integer(UP);
			}
			else
			{
				value = new Integer(DOWN);
			}
		}
		state.clear();
		state.put(new Integer(col), value);
	}

	public int getState(int col)
	{
		int retValue;
		Object obj = state.get(new Integer(col));
		if (obj == null)
		{
			retValue = NONE;
		}
		else
		{
			if (((Integer) obj).intValue() == DOWN)
			{
				retValue = DOWN;
			}
			else
			{
				retValue = UP;
			}
		}
		return retValue;
	}
}
